On what does the emf of a lead storage battery depend? – InterviewSolution

1.	On what does the emf of a lead storage battery depend?
Answer» Solution :The emf of the cell DEPENDS on the concentration of `H_(2)SO_(4)`. As the cell reaction uses `SO_(4)^(2-)` ions, the concentration `H_(2)SO_(4)` decreases. When the cell potential FALLS to about 1.8V, the cell has to be recharged..

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